Change Symbol Size
When a curve or surface is displayed in Point style, the points can be made from one of nine symbols: Asterisk, Cross, Diamond, Diamond (solid), Point, Circle, Circle (solid), Box, or Box (solid). You can change the size of the symbol for a curve or surface. Note: the size of the Point symbol cannot be changed.
Change an Individual Symbol Size
Use the following procedure.
Click the plot to select it.
From the Plot menu, select Symbol.
Select Symbol Size. The Symbol Size dialog box opens.
Choose the desired symbol size. (The default size is 10.)
Click OK to accept the new value.
Note: For standard plots, you can also use the symbolsize option in the plot (or plot3d) command.
Download Help Document